Games Guru: It’s not easy. You have to collect all 130 gold bricks. You need to:

– Finish all levels in Story Mode.
– Get enough studs in each level to attain “True Jedi” status.
– Get all 10 Minikits in each level.
– Finish all Ground Assault Missions, both the Republic and Separatist sides.
– Finish all Space Assault Missions.
– Finish all 12 Bounty Hunter Missions aboard the Invisible Hand.

you need to go to the left side of the hanger with a bounty hunter, activate a door and go through a hallway, at the end of the hallway there is a room with a control panal thingy. you can access a bonus level from there and after that all the other control panal thingys.